Appendix; Least squares regression Wyoming Wholesale has gathered the following data on the number of shipments received and the cost of receiving reports for the first seven weeks of the year. Number of Shipments Received Weekly Cost of Receiving Reports 40 $140 35 130 32 123 28 114 42 148 46 160 48 162 Note: When answering the following questions, round your answers to two decimal places. a. Using the least squares method, develop the equation for predicting weekly receiving report costs based on the number of shipments received. + $ (# of shipments) y=$ b. What is the predicted amount of receiving report costs for a month (assume a month is exactly four weeks) in which 132 shipments are received? $